Question: What country signed the North Atlantic Treaty that has a spoken language of Portuguese?
Paraphrase: What us of a signed the North Atlantic Treaty that has a spoken language of Portuguese?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q877399 wdt:P1891 ?answer . ?answer wdt:P1412 wd:Q5146}
Answer: José Caeiro da Mata, Pedro Teotónio Pereira